1 The low GA 3 concentrations can break seed dormancy and improve seed germination rate and germination potential. Gibberellic acid (GA 3) is a common plant growth regulator that plays an important role in seed dormancy and germination. After hormone treatment, GID1 and DELLA-related genes homologous to rice genes is not expressed, but the expression of PIF4, PIF5, GA 3 ox2, GA 2 oxs, etc., were up-regulated. Starch and carbon metabolism play a very important role in seed development and embryo viability, whether the seed is treated with GA 3 or not. Compared with untreated moso bamboo seeds, the seeds had fewer genes expressed after GA 3 treatment. The low GA 3 concentration accelerated the decomposition of starch and fat and promoted the vacuole formation of cells, but the high GA 3 concentration damaged organelles and increased the endocytosis of cells. The results showed that the low GA 3 concentration (10 mol/L) increased the germination rate, germination potential, vigor index and respiration rate, thus promoting the germination of moso bamboo seeds, but a high concentration of GA 3 (50 mol/L) inhibited the seed germination. In addition, the transcriptome data of the germination seeds, with and without GA 3 treatment were analyzed. In this study, the germination-related indicators (germination rate, germination potential, vigor index, respiration rate) with different content of GA 3 treatment were measured, and the ultrastructure of moso bamboo seeds treated with low and high GA 3 concentrations was observed during the germination process. Place the tray in a warm place, in a plastic bag or covered by something that will retain moisture along with letting air circulate.Exploring the mechanism of Gibberellic acid (GA 3) treatment on seed germination of moso bamboo can lay a foundation for its future breeding and research. Bamboo is a grass and grass seeds usually geminate successfully on top of compost but I like to put a small amount on top just as a bit of protection when the seed starts growing and to ensure they do not dry out.
If you imagine these seeds in their natural environment they would just drop to the ground, they would not be buried under piles of heavy compost. There will then be an inch on each side of each shoot when they appear.Ĭover the seeds with a fine layer of around quarter inch compost this is where the sieving comes in handy as you don’t want big lumps of compost on top of tiny seeds. Place the seeds on top of the compost around 2 inches apart so their roots don’t get tangled up.
Germination temperature should be at between 20 and 26 centigrade. Placing plastic over the tray should help keep it warm. Place in a warm place for 24 hours to raise the temperature of the compost ready for planting the seeds the following day. Put a layer of growing medium into the tray leave enough room for a layer on top of the seeds, about half an inch. You're not going to be able to regulate the temperature for germination, or ensure they don't get completely soggy and rot. To break seed dormancy you can either put the seeds in a refrigerator for a few weeks before you sow them, or you can plant them outside during the colder winter period and hope they germinate in the spring, although this last option will be a bit hit and miss.Ĭonsider your climate and the individual species before sowing the seeds outside in the winter. Seeds from Bamboo for Sale - eBay Affiliate Breaking Seed Dormancy So if you do obtain any seeds you will need to be aware of when they were collected, particularly in the case of bamboo as they produce seed very rarely. If stored seed, as with many other plant seeds that have been in storage and hardened off, they may need some time in cold temperatures for the purpose of breaking dormancy. The seeds are supposed to be generally easy to germinate if sown as soon as they are collected.
0 kommentar(er)
